Displaying 11 results from an estimated 11 matches for "aledanda".
2009 Jul 03
3
Histogram
Hallo,
How can I have the control of the width of each bin in the histogram?
I would like to plot my data modifying the number and the width of the bins.
Is there a good pdf or manual where i can learn to use the plot/hist in R
very well?
I find the help not always clear
Thanks a lot
Ale
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2010 Jun 07
2
as.integer
Hi,
Is there a way to recursively change the variables imported with
read.table(..) - and then attached with attach(..) - from as.factor to
as.integer?
I have about 9 variables that are now recognized as factors but I need to do
statistics on them so I need to change them in as.integer. It works, but I
wonder if there is a way to to this for all the variables in one go.
Thanks a lot for your
2009 Apr 29
3
mode(x) <- "double"
Hi,
I need your help!!
I imported a big coloumn vector from a txt file but it results as mode
:"list" I want to change it in numeric otherwise I can't do my analysis.
This is what i get:
mode (data) <- "double"
Error in eval(expr, envir, enclos) :
(list) object cannot be coerced to type 'double'
>
Thanks a lot!!!
Alessandra
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2012 Mar 13
2
beginner's loop issue
Dear All,
I hope you don't mind helping me with this small issue. I haven't been using
R in years and I'm trying to fill in a matrix
with the output of a function (I'm probably using the Matlab logic here and
it's not working).
Here is my code:
for (i in 1:length(input)){
out[i,1:3] <- MyFunction(input[i,1],input[i,2], input[i,3])
out[i,4:6] <-
2009 Jun 29
2
re moving value from a vector
Hallo,
I have a vector of several iterations and I have to remove /filter out all
the values < than 10,
how can I do this?
Thanks a lot
Alessandra
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2009 May 09
1
for loop
Hi,
I need your help.
I have a vector of numbers reflecting the switch in the perception of a
figure. For a certain period I have positive numbers (which reflect the
perception A) then the perception changes and I have negative numbers
(perception B), and so on for 40000 iterations. I need to take the rate of
this switch for my analysis. Namely, I need a new vector with numbers which
reflect how
2009 Jul 07
2
rle
Hallo,
I have an other problem, I have this vector signData with an alternation of
1 and -1 that corrispond to the duration of two different percepts. I
extracted the durations like this:
signData<- scan("dataTR10.txt")
dur<-rle(signData)$length
Now I would like to extract only the positive duration, e.g.
signData <- c(1,1,1,1,-1,-1,-1,1,1,-1,-1)
posduration <- c(4,2)
I
2009 Jul 01
1
Plot cumulative probability of beta-prime distribution
Hallo,
I need your help.
I fitted my distribution of data with beta-prime, I need now to plot the
Cumulative distribution. For other distribution like Gamma is easy:
x <- seq (0, 100, 0.5)
plot(x,pgamma(x, shape, scale), type= "l", col="red")
but what about beta-prime? In R it exists only pbeta which is intended only
for the beta distribution (not beta-prime)
This is
2012 Jun 05
1
Fourier descriptors created in a loop
Hi All,
Here is the problem: I'm trying to generate a number of Fourier Descriptors
figures for an experiment.
All I need is that they are created within a loop and saved with sequential
names (e.g., s1_1.png, s1_2.png etc..) in my directory.
I created a nested loop with a counter for the different amplitudes for the
actual shapes and a counter for the file names.
This script:
*count
2009 Jun 08
0
SMACOF joint configuration plot with bread data? (Michael Kubovy)
...15. Re: Finding a folder at the root level of an unknown drive
> (Duncan Murdoch)
> 16. Re: S4: When is validObject issued? (or why S4 is killing
> me:( .. (Martin Morgan)
> 17. Re: Installation of R in Redhat Linux (64 bit) (Santosh)
> 18. Fitting with Beta-prime (aledanda)
> 19. Truncated R output in Sweave (Frank E Harrell Jr)
> 20. large numbers of observations using ME() of spdep (lucero mariani)
> 21. Fwd: correct line types in lattice legends (Deepayan Sarkar)
> 22. Journal Articles that Have Used R (Jason Rupert)
> 23. Re: Journal Art...
2009 Jun 06
0
Fitting with Beta-prime
Hi,
I need to fit my data with beta-prim distribution. I found the function in
the package VGAM: betaprime and betaff. I don't know how can I make it work.
I know that i need to calculate the parameters that describe this function
on my distribution. But for exemple I don't understand the "link function.
And then How can I plot my data fitted?
Can you help me out with this?
Thanks